基于递阶偏好的轨道交通网络化运营换乘协调优化

大型轨道交通网络的运能资源配置是提升服务品质与系统效益的关键.在分析网络系统复杂性和换乘衔接特征的基础上,引入综合协调的理念,将换乘枢纽作为疏解冲突、均衡运能的节点,建立以换乘等待时间最短为目标的网络列车运力衔接模型.设计基于协调层次、偏好导向的递阶循环协调算法,获得协调优化的运营方案,探讨了协调中典型问题的解决方法.以实际城轨交通网络为例求解,比选多方案的协调性,证明该方法的有效性,可用于辅助决策.

Transfer Coordination Optimization for Network Operation of Urban Rail Transit Based on Hierarchical Preference

Transport capacity collocation of the large scale urban rail transit network is the key to improve service quality and system benefit. On the basis of analysis of complexity of the network system and transfer characteristics,the idea of coordination is introduced. Taking transfer terminals as the nodes to resolve contradiction and balance transport capacity,this paper presents a linkage model for network trains with the goal of minimizing transfer waiting time. The hierarchical cycle coordination algorithm,counting on assorting layers and preference oriented,is designed to achieve the coordinated optimized schedule scheme. The measures to solve typical problems in the collaboration process are also discussed. An urban rail network serves as an example to establish operation schemes and comparative analysis is made to identify their coordination. It indicates the method is valid and helpful to make decision of transportation operation.